Locomotive stoker



Dec. 9, 1941. H. c. cLoYD LOGOMOTIVE STOKER Filed Feb. 9, 1958 2 Sheets-Sheet l Wil/runnlnlltln INVENTOR Hen/"y 6.' Vaya/- ATTORNEYS Dec. 9, 1941. H.c. cLoYD LOCOMOTIVE STOKER Filed Feb. 9, 1938 2 Sheets-Sheet 2 v INVENTOR l ry Clog/a MMORNEYS i Z510 w Hen Patented Dec. 9, 1941 salaries PATENT orgies 2,265,630 IioCoMo'rivE STOKE-R ltion of fDelaware vApplicaation-'February 9, 1938,'Serial vNo. 189,491

' 7 Claims.

This -invention relates to 'stokers of the type delivering fiuel `to `:the iring opening' of fa furnace, and vparticularly to"fthat"portion v'of Ia stoker mount-ed in alocomotive. y

lInapplying "a stoker ofthe 'type described, 'it is 'desirable "to -loca'te' the lower. end of the discharge conduit `as close tothe' under lside'fof the deck las gpossible, nthereby shortening .the length of the Adischarge :conduit 'andl thus facilitatingv the passage of coal therethrough, and also minimizing theangle betweenthe "discharge conduit and 'the ,conduit leading rearwardly there'rom'ito *the "tender, thereby, further facilitatinjg'fpassage 'of 'fuel Athrough `-the discharge conduit. The "height `o`f the'deck 'with respect to 'the firing openingvaries A'in"differentlocomotives, so that a different style of discharge 'conduit would be required 'for almo's'teveryinstallation in Aorderto maintain thel lower end of; the discharge 'conduit uniformly close 'to fthe under side of the-deck. "It is, therefore, an objecto'f this inventionV to provide fa: standard: 'style o'f discharge conduit, so Iconstructedthat `regardless ofv variations in the 'deck heightjthe lower :end of the discharge conduit may :be *maintained Vclose to the under side of the deck. p

Another object of the invention is to :provide a -novelsectional 'stoker'disch'arge conduit. that is easily and 'conveniently applied/to 'the locomotive, eii'ects'aV saving `lin application co's't and' reduction in labor.

Still 'another object ro'f the. invention lis to. 'provide` an improve-d arrangement 'for supporting a s'toker discharge conduit .on a 'locomotive I With the above land other objectsandadvantages in view, the invention consists in the features of construction, the combination of lements and arrangement oi vrparts E hereinafter .more fully described and claimed, and illustrated. in the accompanying drawings, in, which n Fig. 1 is aragmerrtary'longitudinal vertical central section through l'the rearward portion of a locomotivewiththe novel stoken discharge casing applied therein and shown 'in similar section;

Fig. 2 'is asectional View on the line 2-2 ,-o'f Fig. '1;

'Fig T3 is a .sectional view yonthe line.'3-3 .of Fig. 1,; and a Fig.' 4 is 'a sectional view on the line 4-4 ,of Fig. 1.

In the drawings, the `locomotive is rindicated generally by the numeral IIJ, and itincludes a rebox LII having a' backwallv I2 witha ring opening' TI'3 therein, a 'framel 'Il and a :cab deck fextendingl rearwardly 'rromthe backwall "I2 (Cl. L10-105.5)

below the ring opening I3 and abovethe Aframe M. The reb'ox II is supportedat .its rearward end' on the locomotive iframe III by 'means ofjan expansion .plate I6.

The stokeris designated generally by'theletter S, only so much of it being shown as is `essential to a complete vunderstanding of the invention. The stoker S includes al discharge .conduit lI communicating with the lower vportion of the ring opening I3 and extending` rearwardlyand downwardly through anopening Il8 .in thecab deck I5, and a telescopic conduit section I9, universally connected, Aas at 20, Withlthe @lower rearward end of the discharge oorcdulitrll and extending rearwardly to the locomotive tender (not shown). A screw conveyor 2I Adisposeddn the telescopic conduit section I9 advances -fuel therethrough to the discharge .conduit I1. The fuel is forced through the dischargeconduit I'I to the ring openingby thepressure of thefscrew conveyor 2| against the fuel.

The 'discharge conduit I-'I Vcomprises an :upper portion 22 and a lowerportion ZBL-hingedly-connected together as will be .hereinafter described. The upper discharge conduit portion 22.is rig-idly secured to the backwall I2 by means `cfangirlar brackets 19. A redoor 8 Vforms a closure for the upper portion of the ring openingl I13.

The lower end of the discharge conduit -portion '23 is supported on the locomotive frame I4 by anfimproved supporting arrangement. A'Llfle support includes ,a bracket .24 having la base -25 on .which is formed a `transversely* extending bearing 25. The discharge conduit portion/123 is also provided, at its rearward end, withn.a depending transversely extending -rbearing ,2-`IY. Mounted in and extending beyond the endsof the bear-ings 2% and 27 aref-the pintles28=and29 respectively. The projecting endsl of the; :pintle 28 are lconnected with .the -proecting ends :of the 'pintle 29 by the links 30 and 3|; means, such as the pins- 1, being provided for securing the links -to the pintles. V'Iihepintlesz2l8'aindf29 arevrotatably mounted'in the bearings 26 and-,f21., respectively, providing forrelative-longitudinal movement between the. discharge conduit portion 23 .and its support bracket 24.

rIfhe base V2-5 of vthe supportfbracketf-ZII Afisprovided with a longitudinally extendingA slot-32, and bolts 33 passing through 'the slot-32 ,are threaded vin the frame I4 for rigidly securing the bracket to the frame. -Thusby yloosening the bolts 33, the bracket 24 can :be-moved longitudinally `forward or rearward thereby flowering or raising the rearward end of the discharge prevent lateral displacement of the rearward end of the conduit portion 23, sufiicient clearance being provided to permit longitudinal pivotal movement of the links.

The upper end of the discharge conduit portion 23 is supported from the boiler mud ring 36. Laterally spaced angular brackets31 and 38 are rigidly secured with the mud ring 36 and the expansion plate I6 by bolts 39. The flrebox I I is supported at its rear end on the locomotive frame I4 by means of theexpansion plate I6, which isof sufficient iiexibility to permit slight longitudinal movement of the rebox with respect tothe locomotive frame when the iirebox expands and contracts. Upstanding rods 46 and 4I having their lower ends threaded, project throughthe openings 42 and 43,respectively, in the brackets 31 and 38, respectively. Nuts 44 and 45 are threaded on the portion of the rods 46 ranyd4| projecting beneath the brackets 31 and 38,` respectively, and nuts 46 and 41 are threaded on the rods `4|) and 4| above the brackets 31 and 38, respectively. The rods 48 and 4| are thus vertically adjustable and are held rmly in adjusted position by drawing up the lock nuts 46 and 41 tightly against the brackets 31 and 38, respectively. The rods 46 and 4| provide a support for the adjacent ends of the discharge conduit portions 22 and v23, thereby relieving the backhe'ad of a part of the Weight of said conduit portions. Because of their length, the rods 40 and 4I will flex suiciently to compensate for the uneven expansion and contraction of the` backwallIZ adjacent lthe upper and lower ends of the rods 40 and 4I.v

The bottom wall of the discharge conduit portion 23 is provided atv its forward end with a forwardly projecting transversely extending bearing member 48 received between bearing members A49V and 50 projecting rearwardly from the bottomwall'ofY the discharge conduit portion 22. A pintle 5| passes through the bearing members 48, 49 and 58 for hinging the discharge conduit portion 23 Vto the discharge conduit portion 22.

The upper ends of the rods 40 and 4| are pro-V videdwith transversely extending bearing members-152 and 53, respectively, receiving the ends ofthe pintle 5I, whichlr isflocked in position by pins 54V and 55, passing through the bearing members 52 and 53, respectively, and the pintle 5|.V Y

The rearward end of the discharge conduit portion 22 is providedwith an internal circumferentially extending recess 56 receiving the upper forward end `of the discharge conduit portion 23, providingfor pivotal movement of the portion 23 within the portion 22 about the pintle 5| as. an axis. A strip of spring steel 51, suitably fastened to the upper forward end of the discharge conduit portion 23 and overlapping the innersurface of the discharge conduit portion forms a coal tight seal.'

Fuel discharged from the conduit I 1 is received on the-fuel supporting surface of a distributing ythe discharge conduit portion 22.

plate 58, preferably of the type having separable front and rear sections 10 and 1I, respectively. The construction of the distributing plate forms no part of this invention and is, therefore, not described in detail. The front section 10 is seated on ledge-like means 12 extending forwardly of and below the level of the upper surface of the rear section 1|. of the front section 10 lbeneathl the level of the upper surface thereof and engages the underside of the rear section 1I preventing downward displacement of the front section by reason of the weight of that portion overhanging the ledgelike means 12. Additional securing means, such as pin means 14, extends through the rear section 1I and the hook 13. The rearward end of the distributing plate 58 is received in a recess 59 formed inthe forward end of the bottom of Suitable means, such as bolts, (not shown) passing through the depending ange 60 of the plate 58 is provided for. securing the plate to the discharge conduit'portion 22. Apressure uid distributor head 6I is positioned at the rear ofthe plate 58, from which head blasts of pressure fluid are emitted through the jet openings 62 sweeping across the fuel distributing plate 58 and project-r ing the fuel'over the fire in the rebox.

Mounted adjacent the side walls -ofthe discharge conduit portion 22 and rearward of the distributor head 62 on vertical pivot pins 63 and 64 are the guide vanes 66 and 65, respectively. The vanes 66 and 65 extend forward of the distributor head 62 andare movable about the pivot pins 63 and 64, respectively across the distributing plate 58 to deliver more fuel to one side or the other of the plate. Y

From the above description it is clear that the present invention simplifies application of a stoker to a locomotive. The upper. portion 22 of the discharge conduit can bekproperly located and fixed in position, and the correct relation thereof with the distributing table and distributor head Vcan be provided without the necessity of moving the'bulky lower portion 23 of the discharge conduit. 1

I claim:

-1. In a locomotive having a frame and a boilerk provided with a rebox having a backwall with' Ya firing opening therein, the combination with saidV backwall and frame of a stoker fuel discharge conduit extending upwardly and forward-V ly to sai-d firing opening,.said fue-l discharge conduit comprising separable upper and lower portions hingedly connected at their adjacent ends, said upper portion being rigidly secured with respect to' said backwall,V and means extending between said frame andrsaid conduit for vertically supporting the entire wei-ghtof said lower -conduit portion onV saidzframe, sai-d means in.

cluding a support member. mounted on said frameand having a connection with said lower conduit portion rearward of its center of gravity and an additional support member rearward of said backwall connected with said frame and having a connection with said lower conduit portion forward of its center of gravity, each of said support members having va hinged connection with said lower conduit portion for vertical swinging movement of said conduit pora firing opening therein, the combination with Saidbackwall and'frame of 'a stokerlfuel dis- A hook 13 extends rearwardlyY charge conduit extending upwardly and forwardly to said ring opening, said fuel discharge conduit -comprising separable upper and llower portions hingedly connected at their adjacent ends, said upper portion being rigidly secured with respect to said backwall, and means extending between said frame and said -conduit for vertically supporting the entire weight of said lower conduit portion on said frame, said means including a support member mounted on said fraine and having a connection with said lower conduit portion rearward of its center of gravity and an additional support member rearward of said backwall connected with said frame and having a connection with said lower conduit portion forward of its center of gravity, each of said support members having a hinged connection with said lower conduit portion for vertical swinging movement of said conduit portion, said support members being adjustable for raising and lowering the respective ends of said lower conduit portion to any one of a number of positions.

3. In a locomotive having a frame and a firebox, the combination with said frame and firebox of a stoker fuel `delivery conduit inclined toward the firebox, support means rearward of said rebox extending downwardly from a position on said conduit forward of its center of gravity to said frame, said support means including a pivotal connection with said conduit for movement of said conduit about a horizontal transverse axis, and support means extending downwardly from a position on said conduit rearward of its center of gravity to said frame, said last named support means being adjustable to any one of a number of positions on said frame for raising and lowering said conduit about said pivotal connection, and said last named support means including a pivotal connection with the conduit.

4. In a locomotive having a frame and a firebox, the combination with said frame and firebox of a stoker fuel delivery conduit inclined toward the rebox, support means rearward of said rebox extending downwardly from a position on said conduit forward of its center of gravity to said frame, said support means being adjustable for raising and lowering the upper forward end of said conduit and including a pivotal connection with said conduit for movement of said conduit about a horizontal transverse axis, and support means extending downwardly from a position on said conduit rearward of its center of gravity to said frame, said last named support means being adjustable to any one of a number of positions on said frame for raising and lowering said conduit about said pivotal connection, and said last named support means including a pivotal connection with the conduit.

5. In a locomotive having a frame and a boiler provided with a firebox having a backwall with a firing opening therein, the combination with said backwall and frame of a stoker fuel delivery conduit extending upwardly and forwardly to said rin-g opening, said conduit including separable upper and lower portions, said upper portion being rigidly secured to said backwall, said portions along a part of their adjacent ends having means forming a hinge for vertical swinging movement of said lower portion, and means extending between said frame and said lower conduit portion for supporting the entire weight of said lower conduit portion on the locomotive frame, said support means including adjustable means for raisin-g and lowering one end of said lower conduit portion about its other end.

6. In a locomotive having a frame and a boiler provid-ed with a rebox having a backwall with a firing opening therein, the combination with said backwall and frame of a Stoker fuel delivery conduit extending upwardly and forwardly to said iiring opening, said conduit including separable upper and lower portions, said upper portion being rigidly secured to said backwall, said portions along a part of their adja- -cent ends having means forming a hinge for vertical swinging movement of said lower portion, means extending between the hinged ends of said conduit portions and said frame for supporting the adjacent ends of said conduit portions on said frame, and means extending between the lower rearward end of said lower conduit portion and said frame for supporting the lower rearward end of said lower conduit portion on said frame, said last-named support means being adjustable for raising and lowering said lower conduit portion about its hinged end.

7. In a locomotive having a frame and a boiler provided with a firebox having a backwall with a firing opening therein, the combination with said backwall and frame of a stoker fuel delivery conduit `extending upwardly and forwardly to said ring opening, said conduit including separable upper and lower portions, said upper portion being rigidly secured to said backwall, said portions along a part of their adjacent ends having means forming a hinge for vertical swinging movement of said llower portion, the free part of the hinged end of one of said conduit portions telescoping the free part of the hinged end of the other of said conduit por'- tions, means extending between the hinged ends of said conduit portions and said frame for supporting the adjacent ends of said conduit portions on said frame, and means extending between the lower rearward end of said lower conduit portion and said frame for supporting the lower rearward end of said lower conduit portion on said frame, said last-named support means bein-g adjustable for raising and lowering said lower conduit portion about its hinged end.

HENRY C. CLOYD. 

